1-16 FormulaNameLewis Dot StructureFormulaNameLewis Dot Structureor Electron Dotor Electron DotStructureStructureLi,010. NI,1.LithiumNitrogenоxidetrichloride11. SIH4Silicon2.CS,CarbonSulfidetetrahydrideC,H,ethyene12. | Н,О,HydrogenPeroxideIdonie13. | СО,4.IFCarbonFlouridedioxideCalcium14. SiS25.CaSSiliconSulfideDisulfideBromine gas15. NH,6.Br,AmmoniumIonCHCI,16. NH37.MethylAmmoniaChloride3.

Lewis structure is a method of representing bonding pattern present in the molecule. NOTE :…

Answered: 1. Li,0 Lithium oxide 2. CS, Carbon…

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Chemistry

1. Li,0 Lithium oxide 2. CS, Carbon Sulfide 3. C,H, ethyene

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter20: The Representative Elements

Section: Chapter Questions

Problem 68E: Give the Lewis structure, molecular structure, and hybridization of the oxygen atom for OF2. Would...

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The sulfate ion can be represented with four S—O bonds orwith two S—O and two S=O bonds. (a) Which representation is better from the stand point of formal charges? (b) What is theshape of the sulfate ion, and what hybrid orbitals of S are postu-lated for the σ bonding? (c) In view of the answer to part (b),what orbitals of S must be used for the π bonds? What orbitalsof O? (d) Draw a diagram to show how one atomic orbital fromS and one from O overlap to form a π bond.
The percent ionic character of the bonds in several interhalogen Molecules (as estimated from their measured dipole moments and bond lengths) are ClF (11%), BrF(15%), BrCl (5.6%), ICl(5.8%), and IBr (10%). Estimate the percent ionic characters for each of these molecules, using the equation in Problem 37, and compare them with the given values.
Discuss the nature of the bonding in the nitrate ion (NO3) . Draw the possible Lewis resonance diagrams for this ion. Use the VSEPR theory to determine the steric number, the hybridization of the central N atom, and the geometry of the ion. Show how the use of resonance structures can be avoided by introducing a de-localized MO. What bond order is predicted by the MO model for the NO bonds in the nitrate ion?
Complete and balance the following:(a) N₂(g)+ Al(s)→(b) PF₅(g) +H₂O(l)→
Calculate the lattice energy of AgBr(s) using the following thermodynamic data (all data is in kJ/mol). Ag(s) ΔHsublimation = 265 kJ/mol Ag(g) Ionization energy = 711 kJ/mol Br-Br(g) Bond energy = 173 kJ/mol Br(g) Electron affinity = -345 kJ/mol AgBr(s) ΔH°f = -120 kJ/mol ______________ kJ/mol
Many compounds of the transition-metal elements containdirect bonds between metal atoms. We will assumethat the z-axis is defined as the metal–metal bond axis.(a) Which of the 3d orbitals (Figure 6.23) is most likely tomake a σ bond between metal atoms? (b) Sketch the s3dbonding and σ*3d antibonding MOs. (c) With reference tothe “Closer Look” box on the phases of orbitals, explain whya node is generated in the σ*3d MO. (d) Sketch the energyleveldiagram for the Sc2 molecule, assuming that only the3d orbital from part (a) is important. (e) What is the bondorder in Sc2?
A major challenge in implementing the “hydrogen economy”is finding a safe, lightweight, and compact way of storinghydrogen for use as a fuel. The hydrides of light metalsare attractive for hydrogen storage because they can store ahigh weight percentage of hydrogen in a small volume. Forexample, NaAlH4 can release 5.6% of its mass as H2 upondecomposing to NaH(s), Al(s), and H2(g). NaAlH4 possessesboth covalent bonds, which hold polyatomic anionstogether, and ionic bonds. (a) Write a balanced equationfor the decomposition of NaAlH4. (b) Which element inNaAlH4 is the most electronegative? Which one is the leastelectronegative? (c) Based on electronegativity differences,predict the identity of the polyatomic anion. Draw a Lewisstructure for this ion. (d) What is the formal charge on hydrogenin the polyatomic ion?
Many compounds of the transition-metal elements containdirect bonds between metal atoms. We will assumethat the z-axis is defined as the metal–metal bond axis.(a) Which of the 3d orbitals (Figure 6.23) is most likely tomake a s bond between metal atoms? (b) Sketch the s3dbonding and s*3d antibonding MOs. (c) With reference tothe “Closer Look” box on the phases of orbitals, explain whya node is generated in the s*3d MO. (d) Sketch the energyleveldiagram for the Sc2 molecule, assuming that only the3d orbital from part (a) is important. (e) What is the bondorder in Sc2?
The main reason alkali metal dihalides (MX₂) do notformis the high IE₂ of the metal. (a) Why is IE₂ so high for alkalimetals? (b) The IE2for Cs is 2255 kJ/mol, low enough for CsF₂to form exothermically (ΔHf=-125 kJ/mol). This compoundcannot be synthesized, however, because CsF forms with a muchgreater release of heat (ΔHf=-530 kJ/mol). Thus, the break-down of CsF₂ to CsF happens readily. Write the equation for thisbreakdown, and calculate the heat of reaction per mole of CsF.
An important reaction in the formation of photochemicalsmog is the photodissociation of NO2:NO2 + hv---->NO(g) + O(g) The maximum wavelength of light that can cause this reactionis 420 nm. (a) In what part of the electromagnetic spectrumis light with this wavelength found? (b) What is themaximum strength of a bond, in kJ/mol, that can be brokenby absorption of a photon of 420-nm light? (c) Write out thephotodissociation reaction showing Lewis-dot structures.
The attractive force between two ions in Na20, Fc is 8.64x10-9N. What is the bond length a0 (in nm) given that valence of the charged Na+ is Z1=+1, for O-, is Z2 =-2, the charge of a single electron q is 0.16x10-18 C and the proportionality constant k0=9x109 V.m/C? Note that K=k0(Z1q)(Z2q) and that 1 V.C = 1 J.
The sulfate ion can be represented with four S-O bonds or with two S-O and two So=O bonds.(a) Which representation is better from the standpoint of formal charges?(b) What is the shape of the sulfate ion, and what hybrid orbitals of S are postulated for the σ bonding?(c) In view of the answer to part (b), what orbitals of S must be used for the π bonds? What orbitals of O?(d) Draw a diagram to show how one atomic orbital from S and one from O overlap to form a π bond.